[gentoo-user] emerge doesn't work after emerge-webrsync

Hello.

Today I did an emerge-webrsync successfully, and followed the
instruction to have upgraded profile to
default/linux/x86/2008.0/desktop. Then all portage related command
stopped working. Example:

emerson ~ # emerge -av hsqldb
Traceback (most recent call last):
  File "/usr/bin/emerge", line 4049, in ?
    emerge_main()
  File "/usr/bin/emerge", line 3768, in emerge_main
    settings, trees, mtimedb = load_emerge_config()
  File "/usr/bin/emerge", line 3679, in load_emerge_config
    trees = portage.create_trees(trees=trees, **kwargs)
  File "/usr/lib/portage/pym/portage.py", line 6780, in create_trees
    config_incrementals=portage_const.INCREMENTALS)
  File "/usr/lib/portage/pym/portage.py", line 902, in __init__
    addProfile(os.path.realpath(self.profile_path))
  File "/usr/lib/portage/pym/portage.py", line 889, in addProfile
    raise portage_exception.ParseError(
NameError: global name 'parents_file' is not defined


I am completely clueless because search for the error message only gets
3 google results talking about seeming unrelated issues. What
information should I provide to get some help? 

I hope this information is useful: the output of emerge-webrsync, the
last a few lines are like following (note I followed exactly the steps
instructed at the bottom to upgrade my profile to
default/linux/x86/2008.0/desktop.)

[..snip..]
deleting xfce-extra/xfce4-xkb/files/digest-xfce4-xkb-0.4.3-r1
deleting xfce-extra/xfce4-xkb/files/

Number of files: 126531
Number of files transferred: 67199
Total file size: 161189139 bytes
Total transferred file size: 118930379 bytes
Literal data: 118930379 bytes
Matched data: 0 bytes
File list size: 3095723
File list generation time: 1.351 seconds
File list transfer time: 0.000 seconds
Total bytes sent: 125231642
Total bytes received: 1592044

sent 125231642 bytes  received 1592044 bytes  216978.08 bytes/sec
total size is 161189139  speedup is 1.27
cleaning up
transferring metadata/cache


Performing Global Updates: /usr/portage/profiles/updates/3Q-2004
(Could take a couple of minutes if you have a lot of binary packages.)
  .='update pass'  *='binary update'  @='/var/db move'
  s='/var/db SLOT move' S='binary SLOT move' p='update /etc/portage/package.*'
...............................................................................................................................................................................................


Performing Global Updates: /usr/portage/profiles/updates/1Q-2005
(Could take a couple of minutes if you have a lot of binary packages.)
  .='update pass'  *='binary update'  @='/var/db move'
  s='/var/db SLOT move' S='binary SLOT move' p='update /etc/portage/package.*'
.....................................................................................................................................................................................................................................................


Performing Global Updates: /usr/portage/profiles/updates/1Q-2007
(Could take a couple of minutes if you have a lot of binary packages.)
  .='update pass'  *='binary update'  @='/var/db move'
  s='/var/db SLOT move' S='binary SLOT move' p='update /etc/portage/package.*'
.....................


Performing Global Updates: /usr/portage/profiles/updates/2Q-2007
(Could take a couple of minutes if you have a lot of binary packages.)
  .='update pass'  *='binary update'  @='/var/db move'
  s='/var/db SLOT move' S='binary SLOT move' p='update /etc/portage/package.*'
..........................


Performing Global Updates: /usr/portage/profiles/updates/3Q-2007
(Could take a couple of minutes if you have a lot of binary packages.)
  .='update pass'  *='binary update'  @='/var/db move'
  s='/var/db SLOT move' S='binary SLOT move' p='update /etc/portage/package.*'
........................................


Performing Global Updates: /usr/portage/profiles/updates/4Q-2007
(Could take a couple of minutes if you have a lot of binary packages.)
  .='update pass'  *='binary update'  @='/var/db move'
  s='/var/db SLOT move' S='binary SLOT move' p='update /etc/portage/package.*'
.................


Performing Global Updates: /usr/portage/profiles/updates/1Q-2008
(Could take a couple of minutes if you have a lot of binary packages.)
  .='update pass'  *='binary update'  @='/var/db move'
  s='/var/db SLOT move' S='binary SLOT move' p='update /etc/portage/package.*'
................


Performing Global Updates: /usr/portage/profiles/updates/2Q-2008
(Could take a couple of minutes if you have a lot of binary packages.)
  .='update pass'  *='binary update'  @='/var/db move'
  s='/var/db SLOT move' S='binary SLOT move' p='update /etc/portage/package.*'
.....................................


Performing Global Updates: /usr/portage/profiles/updates/3Q-2008
(Could take a couple of minutes if you have a lot of binary packages.)
  .='update pass'  *='binary update'  @='/var/db move'
  s='/var/db SLOT move' S='binary SLOT move' p='update /etc/portage/package.*'
............
@@


!!! Your current profile is deprecated and not supported anymore.
!!! Please upgrade to the following profile if possible:
        default/linux/x86/2008.0/desktop

To upgrade do the following steps:
# cd /etc/
# rm make.profile
# ln -s ../usr/portage/profiles/default/linux/x86/2008.0/desktop make.profile



>>> Updating Portage cache:  100%

 *** Completed websync, please now perform a normal rsync if possible.
     Update is current as of the of YYYYMMDD: 20080728